PUBDEV-8720: Added MOJO info to algo pages

[hannah-tillman]

For: PUBDEV-8720

I added a "MOJO Supported" section under the intro (except for AutoML, which I added to the FAQ) which outlines whether the model supports mojos and links back to the table in the saving, loading, downloading, and uploading page so users can easily access the info for other models as well.

Please let me know if you would like anything else updated or changed :)